File:YELL 165705 Agnostid trilobite (30513612801).jpg
Original file (2,995 × 2,000 pixels, file size: 3.08 MB, MIME type: image/jpeg)
Captions
Summary
[edit]DescriptionYELL 165705 Agnostid trilobite (30513612801).jpg |
YELL-165705: A small, Agnostid trilobite (YELL-165705) head is shown here. How did these little arthropods survive 500 million years ago? From their lack of eyes and poorly suited swimming body, scientists infer that they were most likely pelagic and floated around the open ocean. This particular Agnostid trilobite is over 500 million years old and was collected from the Wolsey Shale from Mount Holmes in Yellowstone National Park. Scientists use clues from the trilobites' physical features and the type of rock they were fossilized in, to infer the paleo-environment of the area, which at this time would have been described as a moderate to deep-water environment. Collecting any natural resources, including rocks and fossils, is illegal in Yellowstone. Photo by Megan Norr; March 2016; Catalog #20798d; Original #USNM_165705 |
Date | |
Source | YELL_165705 Agnostid trilobite |
Author | Yellowstone National Park |
Licensing
[edit]Public domainPublic domainfalsefalse |
This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government, such work is in the public domain in the United States. See the NPS website and NPS copyright policy for more information. |
This image was originally posted to Flickr by YellowstoneNPS at https://flickr.com/photos/80223459@N05/30513612801. It was reviewed on 16 March 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the Public Domain Mark. |
16 March 2020
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 01:06, 15 March 2020 | 2,995 × 2,000 (3.08 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D5200 |
Exposure time | 1/30 sec (0.033333333333333) |
F-number | f/5.6 |
ISO speed rating | 1,000 |
Date and time of data generation | 09:23, 8 March 2016 |
Lens focal length | 55 mm |
Image title |
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Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop Elements 10.0 Windows |
File change date and time | 14:14, 26 October 2016 |
Y and C positioning | Co-sited |
Exposure Program | Not defined |
Exif version | 2.3 |
Date and time of digitizing | 09:23, 8 March 2016 |
Meaning of each component |
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Image compression mode | 4 |
APEX exposure bias | 0 |
Maximum land aperture | 5 APEX (f/5.66) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
DateTime subseconds | 70 |
DateTimeOriginal subseconds | 70 |
DateTimeDigitized subseconds | 70 |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 82 mm |
Scene capture type | Standard |
Scene control | High gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Unique image ID | DD7BBF680E3E4107BBCD36E54E84C459 |
GPS tag version | 2.3.0.0 |
Supported Flashpix version | 1 |
Image width | 2,995 px |
Image height | 2,000 px |
Date metadata was last modified | 08:14, 26 October 2016 |
Unique ID of original document | uuid:faf5bdd5-ba3d-11da-ad31-d33d75182f1b |
Keywords |
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IIM version | 36,067 |